Some new cobalt(II) complexes: Synthesis,characterization and thermal studies

Cobalt(II) complexes of tetradentate Schiff bases of the type CoL H₂L=C₂₀H₁₆N₂O₂ (H₂dsp), C₂₁H₁₈N₂O₂ (H₂dst), C₂₀H₁₅N₃O₄ (H₂ndsp) and C₁₆H₁₆N₂O₂ (H₂salen)] have been synthesized and characterized by UV-visible, IR, and magnetic studies. Various thermodynamic parameters have been calculated for the decomposition step using TG/DTA. C₂₀H₁₄N₂O₂Co complex has the minimum and C₁₆H₁₄N₂O₂Co complex has the maximum activation energy.This revised version was published online in November 2005 with corrections to the Cover Date.